package com.zhx.rmq.config;

import org.springframework.amqp.core.ReturnedMessage;
import org.springframework.amqp.rabbit.config.SimpleRabbitListenerContainerFactory;
import org.springframework.amqp.rabbit.connection.ConnectionFactory;
import org.springframework.amqp.rabbit.connection.CorrelationData;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.rabbit.listener.RabbitListenerContainerFactory;
import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * 回调
 * 生产者消息的确认机制
 * setConfirmCallback===>交换机的确认（找不到交换机或成功都会触发）
 * setReturnsCallback===>队列的确认（只有找到交换机但是没有找到队列才触发）
 */
@Configuration
public class RabbitConfig {

    @Bean
    public RabbitTemplate createRabbitTemplate(ConnectionFactory connectionFactory) {
        RabbitTemplate rabbitTemplate = new RabbitTemplate();
        rabbitTemplate.setConnectionFactory(connectionFactory);
        //设置开启Mandatory,才能触发回调函数,无论消息推送结果怎么样都强制调用回调函数
        rabbitTemplate.setMandatory(true);

        /**
         * 1.消息推送到server，但是在server里找不到交换机触发
         * 2.消息推送到server，找到交换机了，但是没找到队列
         * 3.消息推送到sever，交换机和队列啥都没找到
         * 4.消息推送成功
         */
        rabbitTemplate.setConfirmCallback(new RabbitTemplate.ConfirmCallback() {
            @Override
            public void confirm(CorrelationData correlationData, boolean ack, String cause) {
                System.out.println("ConfirmCallback:     " + "相关数据：" + correlationData);
                System.out.println("ConfirmCallback:     " + "确认情况：" + ack);
                System.out.println("ConfirmCallback:     " + "原因：" + cause);
            }
        });

        /**
         *1.消息推送到server，找到交换机了，但是没找到队列
         *
         */
        rabbitTemplate.setReturnsCallback(new RabbitTemplate.ReturnsCallback() {
            @Override
            public void returnedMessage(ReturnedMessage returned) {
                System.out.println("ReturnCallback:     " + "消息：" + returned.getMessage());
                System.out.println("ReturnCallback:     " + "回应码：" + returned.getReplyCode());
                System.out.println("ReturnCallback:     " + "回应信息：" + returned.getReplyText());
                System.out.println("ReturnCallback:     " + "交换机：" + returned.getExchange());
                System.out.println("ReturnCallback:     " + "路由键：" + returned.getRoutingKey());
            }
        });

        return rabbitTemplate;
    }



}